Finding the Third Proportional to 475,636.50 and 696,390

Step by Step Solution

1. Step 1: Write the proportion equation
   475,636.50 : 696,390 = 696,390 : x
2. Step 2: Convert to fraction form
   475,636.50/696,390 = 696,390/x
3. Step 3: Cross multiply
   475,636.50x = 696,390 × 696,390
4. Step 4: Simplify right side
   475,636.50x = 484,959,032,100
5. Step 5: Solve for x
   x = 484,959,032,100/475,636.50
6. Step 6: Final answer
   x = 1,019,600.12